Spiral conveyer.



A. L. LINVILLE.

SPIRAL CONVEYER. APPLICATIONv FILED Amin. |917;

Patented Dec. 3, 1918.

' spiral conveyers.

. ter, whichv has its. opposite ends", .provided-L with cut out portions to receive the U-shapedf.`

make and use the same.

l'All'.BIillR'l I..v LINVII'LE, 0F, COLUMBUS, OHIO.

SPIRAL VConviaiizna.

Application inea apra 11, 1917. semi No, 161,218;

To all whom t may concern.'

Be it known that I, ALBnn'rfLLinvrLLn, a citizen of the United States, residingqat Columbus,` in the county of Franklin andv State of Ohio, haveinvented certain-*new` and useful Improvements in Spiral` Convey-- ers; and I do hereby. declare the following to` be a full, clear, and exact description of they invention, such as will enablev othersV tov Skilled in the art towhichit appertains This invention relates to improvements in The object of his invention isto provide a spiral conveyer, which is simple and inexpensive in construction and one that can be manufactured and constructedy at a comparativelyy small cost.

A stilll further object of this invention is;

to provide a conveyer formed of a single blank of rectangular material, whichv `has securedl on its opposite side faces and ex,- tending onk the longitudinal axis thereof, reinforcing strips and the rectangular sheet and strips areftwistedl about thelongitudinal axis thereof toy provide thel spiral, thus a cheap and inexpensive spiralv conveyer is` constructed and one that will not interfere and retard the operation of the material when the device is in use.

A still further object of this invention isl to provide a spiral conveyer of this characends of a link connection, whereby the device may be secured in position in a trough or the like.

With these and other objects in view, the invention consists of the novel combination and arrangement of parts hereinafter more fully described and set forth in the claims hereto appended.

In the drawing:

Figure 1 is a view illustrating the conveyer as made in accordance with this invention,

Fig. 2 is a vertical sectional view of the same,

Fig. 3 is a perspective view of the connecting member for the conveyer,

Fig. 4 -is a side elevation of the blank from which the conveyer is formed,

Fig. 5 is a vertical sectional view of a slightly modified form of this invention,

, Specification of Letters'ratent.

PatentedDec. 3,1918.

Fig. 6 is a vertical sectional View of another `,slightly modified form of this invention.

-Like numerals of reference designatel corrrespondingvparts in all4 the gures ofthe drawing.r i

Referringvmore particularly to lthe drawing,l the lnumeral 1 indicates a relatively flat substantially rectangular in cross seca,

tion blank of material ,of-any suitable lpnetalj,`

which has its opposite ends-.provided centrally with 4the cut out portion 2.

t The body 1 has securedtof its opposite side` facesfon the longitudinal axis thereof, 'reinQ forcing strips 3, whichl strips are subst'an. tially rectangular in cross` section andare.

secured to the oppositefside faces bythe transversely extending bolts. 4,. which. bolts have their opposite ends riveted. as at 5 `to securely hold the lstrips to the opposite sides; of the body 1. The endsof the stripsfare flush with theends of the body land are cutout as at 6 to coincide with the cut out' portions 2 of the strips and are providedl x.

adjacent their cut out. ends and centrallyofl the side longitudinal edges with the spaced longitudinally arranged openings` 7, which.

are yadapted, to removably have. secured,U thereto, a connecting member, which will be hereinafter more fully described.

The reinforcingstrips awhich: are securedN to the longitudinal axis of the-body 1 on the opposite sides` thereof. reinforce the. body and prevent the same from collapsing when twisted to provide spirals. .The blank and strips are twisted in the manner illustrated in Fig. 1 on the'longitudinal axis to provide the continuous spirals 8, as shown in Fig. 1.

A connecting member comprises a cylindrical body 9 and is provided at its opposite ends with the substantially U-shaped connecting members 10, which connecting meinbers have their web portions formed integrally with the ends of the body 9. The arms of the connecting .members are provided with the spaced alined openings 11, through which are adapted to extend, bolts 12 for removably connecting the same to the opening 7 in the strips 4,.which are connected to the body 1, thus facilitating and compensating for securing or connecting the spirals with a suitable power source. Y Referring to the modification shown in Fig. 5, there is illustrated 'the body 12,

shaped angle irons 13, which angle irons ,A

are secured by their heads as shown at 14:,

.thus arranging the stems 15 at right angles tothe body 1 and extending laterally therefrom, whereby the body will be reinforced at this portion when twisted. The modification 5 is twisted as described in the preferred form to provide the continuous spirals 16. y

Referring to the modification shown in Fig. 6, there is provided the Hat bodyl?, which is substantially rectangular in cross section likethe body 12 and the body 1 in thel modified and preferred forms. A pair of L-shaped angle irons 18 are secured, each by one Hange, to the opposite sides of the body on the longitudinal axis thereof, and their free horizontal flanges extend klaterally therefrom adj acentth'e center ofthe body on opposite sides thereof. Thus it can be seen that when the body istwisted in the manner described in the preferred form, it will provide the continuous spirals 19, the medial portion will be vreinforced and the twisting of the same will not affect the' strength and rigidity of the spirals 19.

It is to be understood that the connecting member 9 can be used with either of the modifications shown.

4-What is claimed is:

1. The hereindescribed `method of forming a spiral conveyer consisting in providing a blank with a reinforce at its longitudinal center, and in twisting the blank.

2. In a spiral conveyer comprising a body portion; and a reinforce extending in alinement with the longitudinal axis of the conveyer.

3. In a spiral conveyer comprising a body portion; and a reinforce on opposite sides thereof,` and forming vthe spirals by grasp. ing the opposite ends of the blank and twisting the blank and strips.

5. The hereindescribed method of forming y a spiral conveyer consisting in providing a blank with a reinforce, and twisting the blank from the ends of the reinforce.

6. The hereindescribed method of forming a spiral conveyer consisting in providing a blank having a thickened portion, and twisting the blank from the ends of said portion. 7 The hereindescribed method of forming a spiral conveyer from a blank of material consisting in securing a strip to the blank, and in twisting the blank from the ends of the strip. Y y

8. In combination, a spiral conveyer including a single sheet of metal having a reinforce secured on its opposite side faces and extending longitudinally thereof, said blank and strips adapted to be twisted to provide spirals. c

9.7In combination, a spiral conveyer including a blank of sheet metal, it being substantially rectangular in cross section, reinforcing strips secured on opposite sides of the blank at the center thereof, said strips and blank being twisted toprovide continuous spirals and connecting members for the opposite ends of the spirals and'strips.

In testimony whereof I aiiix my signature in presence of two witnesses.

ALBERT L. 'LINVILLE Witnesses:

KARL BURGns, L. H. GoDMAN.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,

' Washington. D. C. 

